An object cannot be seen by your eyes if...
it does not reflect light and is not a light source
People cast shadows because light can't pass through us. We are...
transparent
opaque
translucent
A window is an example of something that is...
opaque
translucent
transparent
Most of Earth's light is provided by...
the Sun
What is reflection?
when light bounces off an object
A tissue is an example of something that is...
transparent
opaque
translucent
Being able to see an object depends on...
the amount of light given off by the object
If your shirt is dyed orange, what color of light is reflected?
orange
The moon reflects light from...
the sun
Why is it difficult to see outside on a night with no moonlight?
there is no light source and no light to reflect off objects
what is true about the Sun, light bulbs, and flames?
they are all sources of light
What are the light paths necessary to see an object?
from the light source to the object and from the object to the eye
Is a mirror a source of light?
no because it only reflects light and doesn't make light
A table is an example of something that is...
opaque
translucent
transparent
What does transparent mean?
objects that light passes through completely
Cooking oil is an example of something that is...
opaque
translucent
transparent
